Hello, Freesurfer group, The mri_vol2surf only register the fMRI activity at a certain depth of cortex, as specisfied by -projecfrac, to the cortical surface. mri_surf2surf does the same thing. I want to identify any cortical region have activation during the task, therefore, I need to project fMRI activity of entire depth of cortex onto surface. Some regions may have activity in different depth of cortex, Ideally, the significent level of these regions reflect the peak of the activity cross entire depth or the sum of significense of entire depth. the --interp trilinear may do some toward my goal, but it elimit many activities compare to nearest. Thanks, Xin Wang
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